BIL - SJU

$584 Find Cheap Flights from Billings to San Juan

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Luis Munoz Marin Intl departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Juan, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$584
American Airlines
Wed 4/29Sat 5/9
BIL - SJU • 1 stop
Cheapest one-way
Multiple Airlines
Fri 2/6
BIL - SJU • multi-stop
Top airlines
American Airlines
Cheapest • from $584 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Luis Munoz Marin Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Luis Munoz Marin Intl (BIL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Luis Munoz Marin Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billings to Luis Munoz Marin Intl

Wed, Apr 29 - Sat, May 9
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
5:45 am - 10:43 pm
SJU
-
BIL
18h 58m
2 stops
$584American Airlines
Sat, May 23 - Fri, May 29
United Airlines Logo
4:25 pm - 5:29 am
BIL
-
SJU
11h 04m
2 stops
United Airlines Logo
1:00 am - 1:22 pm
SJU
-
BIL
14h 22m
2 stops
$599United Airlines
Wed, Apr 29 - Sat, May 9
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
6:45 am - 10:43 pm
SJU
-
BIL
17h 58m
1 stop
$629American Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
7:00 am - 6:25 pm
BIL
-
SJU
8h 25m
1 stop
United Airlines Logo
7:40 am - 5:12 pm
SJU
-
BIL
12h 32m
2 stops
$642United Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
7:00 am - 6:25 pm
BIL
-
SJU
8h 25m
1 stop
United Airlines Logo
3:46 pm - 1:23 pm
SJU
-
BIL
24h 37m
3 stops
$647United Airlines
Tue, Feb 24 - Mon, Mar 2
American Airlines Logo
1:48 pm - 10:00 am
BIL
-
SJU
17h 12m
2 stops
American Airlines Logo
7:33 am - 10:12 pm
SJU
-
BIL
17h 39m
1 stop
$669American Airlines
Tue, Apr 28 - Sun, May 10
American Airlines Logo
1:51 pm - 12:29 pm
BIL
-
SJU
20h 38m
2 stops
American Airlines Logo
6:45 am - 10:43 pm
SJU
-
BIL
17h 58m
1 stop
$705American Airlines
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
1:48 pm - 11:56 am
BIL
-
SJU
19h 08m
2 stops
American Airlines Logo
7:33 am - 10:12 pm
SJU
-
BIL
17h 39m
1 stop
$706American Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
7:00 am - 6:25 pm
BIL
-
SJU
8h 25m
1 stop
United Airlines Logo
8:30 am - 9:22 pm
SJU
-
BIL
15h 52m
2 stops
$719United Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
7:00 am - 6:25 pm
BIL
-
SJU
8h 25m
1 stop
United Airlines Logo
5:50 pm - 1:23 pm
SJU
-
BIL
22h 33m
3 stops
$724United Airlines
Booking Insights

KAYAK's insights & trends for Billings to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Billings to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Billings to San Juan?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Billings to San Juan were found on American Airlines ($584) and United Airlines ($599).

Good to know

Cheapest flight$584
Most popular time to fly with an average 26% increase in price.
Flight from Billings to San Juan

When to book flights from Billings to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Billings to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Billings to San Juan flights

  • What is the cheapest flight from Billings to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Billings to San Juan Luis Munoz Marin Intl Airport was $584 for a round-trip ticket.

  • Do I need a passport to fly between Billings and San Juan?

    A passport is required to fly from Billings to San Juan.

  • Which aircraft models fly most regularly from Billings to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Billings to San Juan?

    Star Alliance is the only airline alliance operating flights between Billings and San Juan.

  • How does KAYAK find such low prices on flights from Billings to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Billings to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billings to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Billings is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Billings to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Billings with another airline. Booking your flights between Billings and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billings to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Billings up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Billings to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Billings to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Billings to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9244 reviews
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

Everything except the food and entertainment. It was a great experience though

10.0 ExcellentAnonymous, Feb 2026
LGA - IAH
Read more United Airlines reviews

Everything except the food and entertainment. It was a great experience though

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Everything you need to know for your flight from Billings to Luis Munoz Marin Intl

Information on your arrival and departure airports